Abstract

Autoionizing state resonance is very likely to occur during the above-threshold ionizations of atoms. This paper presents our theoretical studies of the photoelectron spectrum produced by such resonance. By employing the technique of resolvent operator, we have shown that in general there are four peaks in the spectrum (as shown in Fig.1), two of which result from the autoionization of the autoionizing state,^[1] others are related to the photoionization of the autoionizing state.

© 1986 Optical Society of America